| Type: | NC |
| Country: | Argentina |
| Grand Prix: | Buenos Aires Grand Prix |
| Date: | 27 January |
| Year: | 1957 |
| Official Name: | XI Gran Premio Ciudad de Buenos Aires |
| Location: | Autódromo Oscar y Juan Gálvez, Buenos Aires |
| Course: | Permanent racing facility |
| Course Km: | 4.556 |
| Course Mi: | 2.840 |
| Distance Laps: | 60 (2 x 30) |
| Distance Km: | 273.978 |
| Distance Mi: | 170.809 |
| Pole Driver: | Juan Manuel Fangio |
| Pole Country: | Argentina |
| Pole Team: | Maserati |
| Pole Time: | 2:17.9 |
| Fast Driver: | Juan Manuel Fangio |
| Fast Country: | Argentina |
| Fast Team: | Maserati |
| Fast Driver2: | Peter Collins |
| Fast Country2: | UK |
| Fast Team2: | Ferrari |
| Fast Time: | 2:19.6 |
| First Driver: | Juan Manuel Fangio |
| First Country: | Argentina |
| First Team: | Maserati |
| Second Driver: | Jean Behra |
| Second Country: | France |
| Second Team: | Maserati |
| Third Driver: | Luigi Musso |
| Third Country: | Italy |
| Third Team: | Ferrari |
| Third Driver2: | Peter Collins |
| Third Country2: | UK |
The 1957 Buenos Aires Grand Prix was a Formula Libre race held at Buenos Aires on 27 January 1957, at the Autódromo Oscar Alfredo Gálvez. The race was held over two heats of 30 laps each, with the result declared as an aggregate of the two. Juan Manuel Fangio finished first and third, his aggregate time giving him a win only 25 seconds ahead of Jean Behra's two second places.[1] [2] The race was run in extremely hot conditions which led to several cases of driver exhaustion, with some retiring and handing over to a team mate.[3]
